melvin weinberg, a flashy, bronx-born swindler turned paid fbi informant. we caught up with weinberg, now retired in florida. how'd you become a confidence man? >> oh, it was easy. you want to make a buck? i seen what was going on back in them days, and everybody was charging people points to get a construction loan or a mortgage. >> reporter: first targeting white-collar crime, weinberg and the fbi set up abdul enterprises, representing two mystical arab sheikhs eager to invest money in the united states. the fbi had set up stings up and down the east coast, from miami to new york, philadelphia and new jersey, and of course, here in washington, d.c., where two congressmen, frank thompson and john murphy, were caught on tape taking bribes in this very house, a house that the fbi was renting from an unsuspecting "washington post" reporter. the tapes produced memorable moments, including congressman ozzie myers uttering these infamous words -- >> money talks in this business, and bull [ bleep ] talks. it's the same way in washington." >> reporter: to this day